add label/refs validation on pasting.

git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@23407 a592a061-630c-0410-9148-cb99ea01b6c8

src/CutAndPaste.cpp

@@ -37,6 +37,7 @@
 #include "Undo.h"
 
 #include "insets/InsetFlex.h"
+#include "insets/InsetCommand.h"
 #include "insets/InsetGraphics.h"
 #include "insets/InsetGraphicsParams.h"
 #include "insets/InsetTabular.h"
@@ -212,14 +213,36 @@ pasteSelectionHelper(Cursor & cur, ParagraphList const & parlist,
 	// A couple of insets store buffer references so need updating.
 	insertion.swap(in.paragraphs());
 
-	ParIterator fpit = par_iterator_begin(in);
-	ParIterator fend = par_iterator_end(in);
+	InsetIterator const i_end = inset_iterator_end(in);
 
-	for (; fpit != fend; ++fpit) {
-		InsetList::const_iterator it = fpit->insetList().begin();
-		InsetList::const_iterator et = fpit->insetList().end();
-		for (; it != et; ++it)
-				it->inset->setBuffer(const_cast<Buffer &>(buffer));
+	for (InsetIterator it = inset_iterator_begin(in); it != i_end; ++it) {
+
+		it->setBuffer(const_cast<Buffer &>(buffer));
+
+		switch (it->lyxCode()) {
+ 
+		case LABEL_CODE: {
+			// check for duplicates
+			InsetCommand & lab = static_cast<InsetCommand &>(*it);
+			docstring const oldname = lab.getParam("name");
+			lab.update(oldname, false);
+			docstring const newname = lab.getParam("name");
+			if (oldname != newname) {
+				// adapt the references
+				for (InsetIterator itt = inset_iterator_begin(in); itt != i_end; ++itt) {
+					if (itt->lyxCode() == REF_CODE) {
+						InsetCommand & ref = dynamic_cast<InsetCommand &>(*itt);
+						if (ref.getParam("reference") == oldname)
+							ref.setParam("reference", newname);
+					}
+				}
+			}
+			break;
+		}
+
+		default:
+			break; // nothing
+		}
 	}
 	insertion.swap(in.paragraphs());
 

src/insets/InsetCommand.h

@@ -85,6 +85,8 @@ public:
 	/// Whether this is a command this inset can represent.
 	/// Not implemented here. Must be implemented in derived class.
 	static bool isCompatibleCommand(std::string const & cmd);
+	/// update label and references. Currently used by InsetLabel.
+	virtual void update(docstring const &, bool) {};
 
 protected:
 	///

src/insets/InsetLabel.cpp

@@ -49,7 +49,7 @@ void InsetLabel::validate()
 }
 
 
-void InsetLabel::update(docstring const & new_label)
+void InsetLabel::update(docstring const & new_label, bool updaterefs)
 {
 	docstring const old_label = getParam("name");
 	docstring label = new_label;
@@ -68,11 +68,13 @@ void InsetLabel::update(docstring const & new_label)
 
 	setParam("name", label);
 
-	Buffer::References const & refs = buffer().references(old_label);
-	Buffer::References::const_iterator it = refs.begin();
-	Buffer::References::const_iterator end = refs.end();
-	for (; it != end; ++it)
-		it->first->setParam("reference", label);
+	if (updaterefs) {
+		Buffer::References const & refs = buffer().references(old_label);
+		Buffer::References::const_iterator it = refs.begin();
+		Buffer::References::const_iterator end = refs.end();
+		for (; it != end; ++it)
+			it->first->setParam("reference", label);
+	}
 
 	// We need an update of the Buffer reference cache. This is achieved by
 	// updateLabel().

src/insets/InsetLabel.h

@@ -53,14 +53,14 @@ public:
 	void updateLabels(ParIterator const & it);
 	///
 	void addToToc(ParConstIterator const &) const;
+	///
+	void update(docstring const & new_label, bool updaterefs = true);
 protected:
 	///
 	void doDispatch(Cursor & cur, FuncRequest & cmd);
 private:
 	///
 	Inset * clone() const { return new InsetLabel(*this); }
-	///
-	void update(docstring const & new_label);
 };